English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We report molecular beam epitaxy growth of Sr-doped Bi$_2$Se$_3$ films on(111) BaF$_2$ substrate, aimed to realize unusual superconducting propertiesinherent to Sr$_x$Bi$_2$Se$_3$ single crystals. Despite wide range of thecompositions, we do not achieve superconductivity. To explore the reason forthat we study structural, morphological and electronic properties of the filmsand compare them to the corresponding properties of the single crystals. Thedependence of the c-lattice constant in the films on Sr content appears to bemore than an order of magnitude stronger than in the crystals. Correspondingly,all other properties also differ substantially, indicating that Sr atoms getdifferent positions in lattices. We argue that these structural discrepanciescome from essential differences in growth conditions. Our research calls formore detailed structural studies and novel growth approaches for design ofsuperconducting Sr$_x$Bi$_2$Se$_3$ thin films.

Effect of Sr doping on structure, morphology and transport properties of Bi$_2$Se$_3$ epitaxial thin films